Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 23, 2026 and October 4, 2026.
Union, Missouri, in Franklin County, has about 13,000 residents (2024 Census Bureau estimate). Every warrant for Union comes from a judge of the Franklin County Circuit Court, is served by whichever agency finds the person, and is recorded in the court file of the case it was issued in. This guide says who issues and serves warrants here, where a person arrested on one is held, how to check for one and how one is cleared.
This guide covers who issues warrants, who serves warrants, after a warrant arrest, checking for a warrant, clearing a warrant and common questions.
Related guides: Union public records, Franklin County warrants, Union arrest records, Union inmate search, Union criminal records, Union court records, Missouri arrest records and Missouri inmate search.
Who Issues Warrants in Union
In Missouri an arrest warrant is signed by a judge. For Union that means the Franklin County Circuit Court, which hears every civil, criminal, family, probate and juvenile case, with associate circuit judges taking misdemeanors, traffic and small claims. A city with a municipal divisions of its own issues warrants on the tickets and ordinance cases it tries.
When a defendant misses a court date the judge issues a bench warrant, and either kind of warrant lives in the court file of the case, kept by the Circuit Clerk.
The court records page SearchSystems verified for the county is at fcmcclerk.com/case/search (page title: Search Records), which answered when SearchSystems opened it on September 23, 2026.
Statewide, Case.net is the Missouri courts' free statewide case search.
Who Serves Warrants in Union
The Franklin County Sheriff's Office and the agency that reports for Union (filed by the FBI as Union Police Department) serve warrants in and around Union.
A warrant issued in Franklin County is good anywhere in Missouri, so it is served by whichever agency finds the person, in a traffic stop as often as at the door.
Together, the six agencies in Franklin County with all twelve months of 2025 on file reported 2,212 arrests to the FBI that year; arrests on warrants are counted among them, not separately.
Each agency and what it reported is in Union arrest records.
Where a Person Arrested on a Warrant from Union Is Held
A person arrested on a warrant and kept in custody goes to the county jail, whichever agency made the arrest. The jail, run by the Franklin County Sheriff's Office, held about 180 people on an average day in 2019 by the Vera Institute of Justice's count and has a jail page SearchSystems verified at franklinmo.gov/218/Sheriff, phone 636-582-8600. The Union inmate search guide covers the jail in full.
A person arrested in Union on a warrant from another county is held at the same jail until that county takes custody.
How to Check for a Warrant in Union
Whether a warrant is out from Union shows in two places:
- The court file of the case, through the Circuit Clerk, since a warrant is recorded in the case it was issued in.
- Case.net, the Missouri courts' free statewide case search, for a case whose register of actions shows a warrant.
Not one of the Franklin County pages SearchSystems verified (the sheriff's and the court's) is a list of open warrants, so a check means asking the court or the prosecutor about a case by name.
Clearing a Warrant from Union
Only the judge who issued a warrant can recall it. For a case from Union that means appearing before the Franklin County Circuit Court, with the case put back on the calendar through the Circuit Clerk.
Frequently Asked Questions
Can I check for a warrant online in Union?
Not from the Franklin County pages SearchSystems verified; none of them is a warrant list. Case.net is the Missouri courts' free statewide case search, and a case whose register of actions shows a warrant is the record of it. The court file is the record of a warrant: ask the Circuit Clerk.
Who serves warrants in Union?
The agency that reports for Union inside the city and the Franklin County Sheriff's Office outside it, or whichever agency finds the person; an Missouri warrant is valid anywhere in the state.
Where is a person arrested on a warrant in Union held?
At the county jail, run by the Franklin County Sheriff's Office, if kept in custody.
How is a warrant from Union cleared?
By appearing before the court that issued it; the judge recalls the warrant in court. The case is put back on the calendar through the Circuit Clerk.
Is this the official Union website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.